Archie,
What about the other 99% of golfers who support the course and need a backstop? Agree it would have to be "now and then" use, but even on courses with one or two examples, I have seen master plans where the members want them removed.
In addition to the occasional Redan or reverse slope green (no more than once each per course, and always with room out front to run it up, I try to do a few things, such as vary the amount of back to front slope among greens so players need to judge each one as opposed to knowing they are "standard". Also, design greens where part of it, usually the Sunday pin to tempt golfers more, has a steeper back stop where other parts don't. The hope is golfers will understand the backstop defines which is the better side of the fw to play to, i.e., trying to create some strategy, not just difficulty for great players.
Raises the question (again) of should architects design a shot that can't be played least one way with the intended result of reaching the green?